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    • 6. 发明申请
    • Method for forming an end portion of a cylindrical workpiece
    • 用于形成圆柱形工件的端部的方法
    • US20090205386A1
    • 2009-08-20
    • US12379240
    • 2009-02-17
    • Tohru IrieMasashi Ota
    • Tohru IrieMasashi Ota
    • B21D22/18B21D41/04
    • B21D22/18B21D41/04
    • A method for forming a part of deformed cross section with non-rotation symmetry on an end portion of a cylindrical workpiece. The method includes steps of performing a first relative motion of a roller against the workpiece toward its one open end, and performing a second relative motion of the roller against at least a part of outer peripheral surface of the end portion of the workpiece toward the inside thereof, while the roller is rotated relative to the workpiece by one rotation, in such a state as being held to be in contact with the end portion, in a plane which is perpendicular to the moving direction of the first relative motion, and which includes a position where the roller contacts the outer peripheral surface of the end portion, and performing a rotational motion of the roller relatively rotating around the workpiece, while performing the second relative motion, with the roller being held to be in contact with the outer peripheral surface of the end portion. The first relative motion is performed up to a position exceeding the one open end, while repeating the second relative motion and the rotational motion.
    • 一种用于在圆柱形工件的端部上形成具有非旋转对称的变形横截面的一部分的方法。 该方法包括以下步骤:将辊抵靠工件朝向其一个开口端执行第一相对运动,并且将辊抵靠工件的端部的外周表面的至少一部分朝向内部进行第二相对运动 同时在与第一相对运动的移动方向垂直的平面中,滚子相对于工件旋转一个旋转状态,使其保持与端部接触的状态,并且包括 所述辊接触所述端部的外周面的位置,并且在执行所述第二相对运动的同时执行所述辊围绕所述工件相对旋转的旋转运动,所述辊被保持为与所述外周面接触 的端部。 执行第一相对运动直到超过一个开口端的位置,同时重复第二相对运动和旋转运动。
    • 7. 发明授权
    • Spinning processing method and apparatus therefor
    • 纺丝加工方法及其设备
    • US06386010B1
    • 2002-05-14
    • US09509022
    • 2000-03-21
    • Tohru IrieMasashi Ota
    • Tohru IrieMasashi Ota
    • B21D2214
    • B21D51/2615B21D22/14B21D41/04
    • According to the spinning processing method of the invention, a steel tube (4) as a work is rotated round its longitudinal axis (X). A plurality of forming rollers (23), which are arranged around the steel tube (4), are rotated round the steel tube axis (X) in the direction (&bgr;) opposite to the direction of rotation for the steel tube (4). The forming rollers 23 are further moved toward the steel tube axis (X) into pressure contact with the steel tube (4), while being moved relatively to the steel tube (4) in the axial direction (A-B) thereof, to draw the steel tube (4) to form a section of reduced diameter. The relative rotation of the steel tube (4) and the forming rollers (23) in the opposite directions (&agr;, &bgr;) increases the relative rotation speed between them and shortens the processing time.
    • 根据本发明的纺丝加工方法,作为工件的钢管(4)绕其纵轴(X)旋转。 围绕钢管(4)布置的多个成形辊(23)围绕钢管轴线(X)沿与钢管(4)的旋转方向相反的方向(β)旋转。 成形辊23进一步朝着钢管轴线X移动,与钢管4的轴向(AB)相对地移动相对于钢管(4)而与钢管(4)压力接触,以将钢 管(4)以形成直径减小的部分。 钢管(4)和成形辊(23)在相反方向(α,β)上的相对旋转增加了它们之间的相对转速并缩短了处理时间。
    • 10. 发明授权
    • Method for forming an end portion of a cylindrical workpiece
    • 用于形成圆柱形工件的端部的方法
    • US08091396B2
    • 2012-01-10
    • US12379240
    • 2009-02-17
    • Tohru IrieMasashi Ota
    • Tohru IrieMasashi Ota
    • B21D22/00B21D3/02
    • B21D22/18B21D41/04
    • A method for forming a part of deformed cross section with non-rotation symmetry on an end portion of a cylindrical workpiece. The method includes steps of performing a first relative motion of a roller against the workpiece toward its one open end, and performing a second relative motion of the roller against at least a part of outer peripheral surface of the end portion of the workpiece toward the inside thereof, while the roller is rotated relative to the workpiece by one rotation, in such a state as being held to be in contact with the end portion, in a plane which is perpendicular to the moving direction of the first relative motion, and which includes a position where the roller contacts the outer peripheral surface of the end portion, and performing a rotational motion of the roller relatively rotating around the workpiece, while performing the second relative motion, with the roller being held to be in contact with the outer peripheral surface of the end portion. The first relative motion is performed up to a position exceeding the one open end, while repeating the second relative motion and the rotational motion.
    • 一种用于在圆柱形工件的端部上形成具有非旋转对称的变形横截面的一部分的方法。 该方法包括以下步骤:将辊抵靠工件朝向其一个开口端执行第一相对运动,并且将辊抵靠工件的端部的外周表面的至少一部分朝向内部进行第二相对运动 同时在与第一相对运动的移动方向垂直的平面中,滚子相对于工件旋转一个旋转状态,使其保持与端部接触的状态,并且包括 所述辊接触所述端部的外周面的位置,并且在执行所述第二相对运动的同时执行所述辊围绕所述工件相对旋转的旋转运动,所述辊被保持为与所述外周面接触 的端部。 执行第一相对运动直到超过一个开口端的位置,同时重复第二相对运动和旋转运动。